1. Wanfang Medical Network is the website of Wan Fang Data Co., Ltd. It has more than 220 exclusive Chinese medical journals, 1 000 Chinese medical journals, and 4 1 000 abstracts of foreign medical journals (full text is obtained by email, and all core journals are included), including more than 220 exclusive cooperative journals such as Chinese Medical Association and Chinese Medical Doctor Association. There are nearly 3.6 million Chinese periodical papers and more than 4.55 million foreign periodical papers.

2. HowNet China Knowledge Resources General Database provides CNKI source database, foreign language database, industrial database, agricultural database, medical and health database, economic database and education database.

3.Pubmed is a database in medical and life sciences, which aims to organize and share information in scientific research. Provide users with services such as document retrieval, picture retrieval, impact factor query, free full-text download, and statistical analysis of the National Natural Science Foundation.

4.ClinicalKey is a clinical decision support tool launched by Elsevier, an information analysis company, which helps doctors quickly acquire accurate, concise and world-leading evidence-based medical knowledge. Clinical Essentials includes clinical summaries based on the latest evidence and practice guidelines reviewed and edited by local experts, as well as classic books such as Cardiology by Braunwald and Emergency Medicine by Rosen, covering more than 25,000 kinds of clinical medication information and more than 400 kinds of medical scoring tools in China.

These databases should now be purchased by university libraries. If the school doesn't have enough authority to purchase these databases, or there are no accounts outside the school, you can use seek68 document library to find these databases and consult the downloaded documents. I used to use this website when writing papers.